Innovative Scientific Know-How
Award Winning Scientific Energy Management and Power Consumptions Savings
Innovative Mathematical Models
For the simulation of the intensive energy consuming electrical installations.
The mathematical simulation models of electrical installations developed by the scientists of SEMAN Group concern innovative algorithms based on FEM (finite element algorithms) and Artificial Intelligence (Fuzzy neural networks). Once all the necessary theoretical data of an intensive energy-consuming electrical installation have been collected and the relevant real-time measurements – recordings have been performed, the above-mentioned scientific algorithms are applied in order to accurately simulate the operation of both the most energy-consuming electric motors and the power transformers at the substations, as well as the proximity effects between the power cables of the electric loads.
To design essential customized interventions and calculate accurate final energy-saving results.
The results of the above simulations indicate precisely the energy losses inside the electrical installation. In the following, by applying a load flow analysis, which is fed by the above results for the entire electrical installation, all interactions between the electric loads, as well as the harmonics resonance pitch frequencies, the voltage dips, the overcompensations, the power cables overloads, etc., are calculated. The results of the above load flow analysis algorithm, lead to the design and construction of the essential customized interventions, with which the optimum energy management and saving are achieved.
Scientific Algorithms
Accurate Evaluation
The development of algorithms based on International Standards for the accurate evaluation of the energy savings result.
By applying the relevant International Standards, SEMAN Group engineers develop special algorithms for the correlation of electric energy consumption with the various factors affecting it, such as the various production data, the raw materials, the operation hours, the ambient temperatures, etc. These algorithms are based on statistical analysis techniques on artificial intelligence, such as fuzzy sets and neural networks. After the accuracy of such an algorithm is verified based on the historical data of intensive energy-consuming electrical installation, before the commissioning of the electric energy-saving scientific project, and provided that its perfect accuracy is assured, then it can be applied for the months following SEMAN Group’s saving project and hence, it can calculate what the actual electric energy consumption would be if the saving project had not been implemented. By comparing, therefore, the electric energy consumption predicted by the algorithm with the actual electric energy consumption indicated on the monthly electricity invoices, the electric energy saving for each month can be extracted. Based on the international bibliography, the above calculations should be carried out for at least 3 months after the saving project is set into operation, in order to extract the final energy-saving result with the maximum possible accuracy.
Presentations and documents
Electricity Invoices:
The electricity invoices showing the total electricity consumption and the total cost of the facility for the last 12 or 24 months.
Starter or Control Mode for the Electrical Motors:
Direct on line, star/delta switch, inverter VFD, soft starter, or other power electronics installed.
Single-line Drawings:
Single-line drawings of substations, medium voltage distribution panels, Low Voltage (LV) main distribution panels, and of the most important LV subpanels.
Important Lighting Loads:
A list of the most important lighting loads, with their nominal power and nominal voltage, the MCC board they are supplied from, as well as a brief description (LED lighting, lighting with energy-saving lamps, fluorescent lighting, etc.).
Power Transformers:
A list of the installed Power Transformers with their nominal data (nominal power, primary/secondary voltage, short circuit voltage).
Connected Capacitors & Filters:
A list of all the connected capacitors and filters (if any) with the rated voltage, the rated power and the connection point.
Important Electrical Motors:
A list of the most important (high energy consuming) electrical motors with their nominal power and nominal voltage, the MCC board they are supplied from as well as a brief description (LV - AC motors, DC motors).
Any Measurements:
Any measurements (if there are any since the measurements are not mandatory at this stage in order to elaborate the preliminary scientific study) concerning active & reactive power, voltage, current, power factor, voltage & current harmonics from the LV main distribution panel, and the most important LV subpanels.
How do I get Started?
What Sets Us Apart
All we need is some details about your electrical installation in order to perform the preliminary study to find your guaranteed minimum savings, the project price, as well as the payback. You will have everything you need to make a decision if this is right for your facility.
